Alarm device



June 24, 1924. 1,499,304

P. JACOBSON ET AL V ALARM DEVICE Fi'led Jan. 19, 1922 fnzyrizfans' Patented June 24, 1924,

NET.

rnILIr ameson nun lemon-1a s. MOSCOVITZ,

ALARM or NEW HAVEN, comviioricur.

i DEVICE.

Application filed January 19, 1922. Serial No. 530,334.

T all whom it may concern Be it known that we, PHILIP J/iconsori, a citizen of the Unitel States, and lsinonn S. Moscovrrz, a subject of Ferdinand 1, King of Rumania, residing at New Haven, in the county of N w Haven and State ot Connecticut, have invented certain new and useful Improvements in Alarm Devices, of which the following is aspecitication,reference be. ing had therein to the. accompanying draw-v ings. 7

Our invention relates to an alarm device, the principal object of which is to provide a mechanism of this character having dui pleX alarms, onea belland the other a buz zer, or the like. v I i 7 Among other-aims and objects of the in vention maybe recited the provision of a device of the character mentioned witha view to compactness, in which the number of parts are few, constructiim simple, cost'of production small. and etliciency and opera ti'on high- 1 i The improvements in the details anda'rr. rangement of parts will be apparent from n inspection of the accompanying drawings, in connection with the description hereinaftercontained and wherein a preferred embodiment of the invention is disclosed for the purpose of imparting an understanding of the same. 7 I 7 In the drawings: y Figure 1 is a front elevation of our improved alarm deviceand Figure 2 is a fragmentary sectional view thereof, taken generally upon'line 22 of Figure 1.

Having more particular reference to the drawings and in connection with which like reference characters refer to corresponding parts, 10 represents the base member, 12 and 13 two magnet coils which are connected with a plate 1% forming part of the base member 10 and 11 the bell. All of these parts are of a common type and well known in the art.

Fixed to a standard 15 connected with the base member 10 by the plate 16 and screws 17 or the like, is an armature spring 18, which is provided with companion arms 19 and 20 which terminate in spring lingers 16 and 1-7, the former being shown slightly longer than the latter, but may be of the same length, if desired.

To the arm 19 isfixed the bell. armature 21 having the rod 22 connected therewith with a ball thereon.

' The wiring of this arm 20 is lined thebuzzer armature 24L. Both ofthe armatures 21 and 2 1- are so arranged relatively to the coils 12 and 13 that they are directly opposite the cores 25 thereof.

Attached member 10 is a plate 26 of fiber or similar non-conducting material, to which is secured, the contact standards 27 and 28, the former of which terminates at its upper end with an inwardly projecting contact point 29 oppos te the finger 16, and the latter in the contact point 30 opposite the finger 47.

Connected with the base. member 10 are three binding posts 31, 32 and 33, these being of the usual form with bindlng nuts device comprises a connection 35 between the contact standard 2.7 and the binding post 82, a connection 36 between the binding post land the contact standard 2e and a connectionfi? between the coil 13 and the binding post33, these latter coils being connected witheach other in upon its outer end, and to the I to the underside of the base I the usual manner, and the coil 12 with the base member 10,;01' ground by the wire 38.

The numeral 39 designatesthe battery, 41-0 the bell uush button' and41 the buzzer push ba 'tery by the wire 42 and the former to the bindingpost 31 by the wire 13 andthe latter to the binding battery andbinding post 33 being connected by the'wire 15. v

In operation by push button t0 the bell circuit is closed and the ball 25 strikes the bell 11 sounding the alarm. Likewise when the buzzer push button 11 is manipulated the buzzer circuit is closed and the buzzeris operated.

, The method of the operation ofv the arma tures 21 and 2ttoward and away from the cores 25 of the co ls 12 and 13 when the latter are energized, is well known and requires.

no detailed description herein. The new feature, however, is the association of the two armatures with the coil and means for independently operating each from different points and producing either a loud alarm as ith the bell, or a light alarm as with the buzzer. Thus the device isadaptcd for annunciator purposes to indicate. that the alarms, whether that of the bell or buzzer,

are being sounded from two different places. The weight of the buzzer armature is post 31 by the wire 41, the

3 button, both of which are connected with the I manipulating the bell. f

much less than that of the combined bell arzmature and the rod 22 and ball 23, hence when the ibu-zzerarmature is actuated through the closing of its circuit, its vibration is so relatively rapid that no movement is imparted to the bell armature which remains practically stationary. This device might be utilized with the bell'alarm for instance'at the front door of a residence and the buzzeralarm push button at the rear door or vice versa, the character of" the sound caused by the manipulation of either push button 'indicating the location of the button. with'a different tone'may be substituted, it desired, for the buzzer alarm.

Minor changes and alterations may"be made'within our invention; aside from those herein suggested, and we would therefore have-1t understood that we do'not limit ourselves to the exact construction herein shown and described, but claim all that falls fairl -y within the spiritand' scope of the appended 1 claims.

What we claim as new and desire to secure by Letters Patent, is

1. In an alarm device of the character described; a magnet; an armature spring having companion arms connected therewith; a bell armature connected with one of said arms; a buzzer armature connect d with the other of said arms; and contact point for each of said armatures.

2. In an alarm device of the character described; a magnet; an armature spring having companion arms connected therewith; a bell armature connected with one of said arms; a buzzer armature connected with the other of said arms, and greater in length than the bell armature; and a contact point for each of said armatures.

3. In an alarm device of thecharac'ter described; a magnet; an armature spring having companion arms connected there- A bell with; a bell armature conneoted'with onez'of said arms; a buzzer armature connected with the other of said arms; one of said armatures being longer than the other; and a contact point for each of said armatures.

4.- In an alarm device of the character described; a magnet; an armature spring having companion arms connected therewith, and secured to a fixed part; a bell armature connectedwith one of said arms;- a buzzer'armature connected with the other of said arms, and a contactpoint for each of said armatures. f

5." In an alarm device of the character described; a magnet; an armature spring having companion arms connected therewith a bell armature connected with one of a contact point for each of said armatures.

7. In an alarm device of the character described; a magnet; an armature spring having companion arms connected therewith; a bell armature connected with one of said arms; a buzzer armature connect d with the other of said arms; anda contact point for each of said armatures, each of the companion arms of said armature spring near the outer end being out of contact-with the armature connected therewith.

In testimony whereof we have hereunto afiixed our signatures.

PHILIP JACQBSON'. IS'IDOR-E S. MOSCOVITZ. 

